Filtration device



FIG. 1 is a first perspective view of a filtration device showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is an exploded perspective view;

FIG. 9 is a perspective view of the filtration device with the front open; and,

FIG. 10 is side view of the filtration device with the front open. 

CLAIM The ornamental design for a filtration device, as shown and described. 